REOx掺杂的ZrO2催化剂催化羟乙基吡咯烷酮脱水反应性能

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REO_x掺杂的ZrO₂催化剂催化羟乙基吡咯烷酮脱水反应性能

张磊; 刘欣梅; 阎子峰

State Key Laboratory of Heavy Oil Processing, PetroChina Key Laboratory of Catalysis, China University of Petroleum, Dongying 257061, China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-06-28 发布日期:2006-06-28
通讯作者: 张磊

Investigation of N-(Hydroxylethyl)pyrrolidone Dehydration over REO_x-doped Nano-ZrO₂ Catalyst

ZHANGLei; LIUXinmei; YANZifeng

State Key Laboratory of Heavy Oil Processing, PetroChina Key Laboratory of Catalysis, China University of Petroleum, Dongying 257061, China

Received:1900-01-01 Revised:1900-01-01 Online:2006-06-28 Published:2006-06-28
Contact: ZHANG Lei

摘要/Abstract

摘要： Catalyst plays an important role in the dehydration of N-(hydroxylethyl)pyrrolidone (NHP) to prepare N-vinyl-pyrrolidone (NVP). At present, NVP yield is only about 30% on commercial ZrO2 catalyst. A coupled pre-cipitation and solid dispersion technique was designed to prepare the nano-ZrO2 catalyst, in which rare earth metal oxides (REOx) was used as electronic promoter. The results indicated that the catalyst doped REOx (S-1.0) exhibits the optimum performance of NHP dehydration at moderate conditions. NHP conversion and NVP selectivity are respectively 97.0%, 82.3%. Of special interest is that the indexes of the catalyst (S-1.0-1.0) are up to 98.4% and 89.2% respectively. Furthermore, this catalyst bears the good stability. It means that nano-ZrO2 doped REOx cata-lyst might be a potential commercial catalyst for the NHP dehydration.

关键词: N-(hydroxylethyl)pyrrolidone;dehydration;rare earth metal oxides Nano-ZrO2 catalyst

Abstract: Catalyst plays an important role in the dehydration of N-(hydroxylethyl)pyrrolidone (NHP) to prepare N-vinyl-pyrrolidone (NVP). At present, NVP yield is only about 30% on commercial ZrO2 catalyst. A coupled pre-cipitation and solid dispersion technique was designed to prepare the nano-ZrO2 catalyst, in which rare earth metal oxides (REOx) was used as electronic promoter. The results indicated that the catalyst doped REOx (S-1.0) exhibits the optimum performance of NHP dehydration at moderate conditions. NHP conversion and NVP selectivity are respectively 97.0%, 82.3%. Of special interest is that the indexes of the catalyst (S-1.0-1.0) are up to 98.4% and 89.2% respectively. Furthermore, this catalyst bears the good stability. It means that nano-ZrO2 doped REOx cata-lyst might be a potential commercial catalyst for the NHP dehydration.

Key words: N-(hydroxylethyl)pyrrolidone, dehydration, rare earth metal oxides Nano-ZrO2 catalyst

张磊, 刘欣梅, 阎子峰. REO_x掺杂的ZrO₂催化剂催化羟乙基吡咯烷酮脱水反应性能[J]. CIESC Journal.

ZHANGLei, LIUXinmei, YANZifeng. Investigation of N-(Hydroxylethyl)pyrrolidone Dehydration over REO_x-doped Nano-ZrO₂ Catalyst
[J]. .

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REO_x掺杂的ZrO₂催化剂催化羟乙基吡咯烷酮脱水反应性能

Investigation of N-(Hydroxylethyl)pyrrolidone Dehydration over REO_x-doped Nano-ZrO₂ Catalyst

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